// 文章路由函数处理模块

// 导入数据库模块
const { bool, date } = require('joi')
const db = require('../db/index')

// 获取文章分类列表
exports.getArticleCates = (req, res) => {
    const sqlStr = 'select * from ev_article_cate where is_delete=0 order by id asc'
    db.query(sqlStr, (err, results) => {
        if (err) return res.cc(err)
        res.send({
            status: 0,
            message: '获取文章分类数据成功!',
            data: results
        })
    })
}

// 新增文章分类
exports.addArticleCates = (req, res) => {
    const sqlStr = 'select * from ev_article_cate where name=? or alias=?'
    db.query(sqlStr, [req.body.name, req.body.alias], (err, results) => {
        if (err) return res.cc(err)
        if (results.length === 2) return res.cc('分类名称与分类别名被占用,请更换后重试!')
        if (results.length === 1 && results[0].name === req.body.name && results[0].alias === req.body.alias) 
        return res.cc('分类名称与分类别名被占用,请更换后重试!')
        if (results.length === 1 && results[0].name === req.body.name) 
        return res.cc('分类名称被占用,请更换后重试!')
        if (results.length === 1 && results[0].alias === req.body.alias) 
        return res.cc('分类别名被占用,请更换后重试!')

        const sql = 'insert into ev_article_cate set ?'
        db.query(sql, req.body, (err, results) => {
            if (err) return res.cc(err)
            // if (results.ffectedRows !== 1) return res.send({ status: 1, message: '注册用户失败,请稍后再试!' })
            if (results.affectedRows !== 1) return res.cc('新增文章分类失败!')
            res.cc('新增文章分类成功!', 0)
        })
    })
}

// 删除文章分类列表
exports.deleteCateById = (req, res) => {
    const sqlStr = 'update ev_article_cate set is_delete=1 where id=?'
    db.query(sqlStr, req.params.id, (err, results) => {
        if (err) return res.cc(err)
        if (results.affectedRows !== 1) return res.cc('删除文章分类失败!')
        res.cc('删除文章分类成功!', 0)
    })
}

// 删除文章分类列表
exports.getArtCateById = (req, res) => {
    const sqlStr = 'select * from ev_article_cate where id=?'
    db.query(sqlStr, req.params.id, (err, results) => {
        if (err) return res.cc(err)
        console.log(results)
        if (results.length !== 1) return res.cc('获取文章分类失败!')
        res.send({
            status: 0,
            message: '获取文章分类成功',
            data: results[0]
        })
    })
}

// 更新文章分类列表
exports.updateCateById = (req, res) => {
    // 定义查重的sal语句
    const sqlStr = 'select * from ev_article_cate where id<>? and (name=? or alias=?)'
    db.query(sqlStr, [req.body.id, req.body.name, req.body.alias], (err, results) => {
        if (err) return res.cc(err)
        if (results.length === 2) return res.cc('分类名称与别名被占用,请稍后重试!')
        if (results.length === 1 && results[0].name === req.body.name && results[0].alias === req.body.alias) return res.cc('分类名称与别名被占用,请稍后重试!')
        if (results.length === 1 && results[0].name === req.body.name) return res.cc('分类名称被占用,请稍后重试!')
        if (results.length === 1 && results[0].alias === req.body.alias) return res.cc('分类别名被占用,请稍后重试!')
        // res.cc('更新文章分类成功!', 0)
        const sql = 'update ev_article_cate set ? where id=?'
        db.query(sql, [req.body, req.body.id], (err, results) => {
            if (err) return res.cc(err)
            if (results.affectedRows !== 1) return res.cc('更新文章分类失败!')
            res.cc('更新文章分类成功!', 0)
        })
    })
    
}
